Improvement in scythe-nibs



iNrTnn STATES PATENT @Triest DAVID SAWYER, OF CORNISH, NEW HAMPSHIRE.

IMPROVEMENT IN SCYTH=NIBS.

Specification forming part of Letters Patent No. 6,4W4, dated May 22, 1849.

To all whom it may concern:

Be it known that I, DAVID SAWYER, of Gornish, in the county ot' Sullivan and State of' New Hampshire, have invented a new and Improved ScytheSnath Thole; and I do hereby declare that the following is a full and exact description thereof.

The figures and letters have reference to the -drawings and descriptive schedule annexed,

which. are to he taken as part of this specilication.

The nature ot' my invention consists: lirst, in making all the parts of the thole 7, on which its attachment to the snath depends, of iron or other metal, by which any wear ot' the hatt Sxx at the point ,attachment Sz is prevented; second, by securing the ends of the loop 4 by a ring, 3, any welding ofthe loop is avoided; third, in having the attaching-screw 6, with a pivot-point, 6d, act. in a socket against the inner side ot' the cap 5", a less power on the screw is required, an equal bearing or pressure on the sides ofthe loop is elfected, and the thole may be attached to any partof the sua-th, large or small, without affecting the length ot' the thole or requiring any alteration ot' any part of the iron-work; fourth, by placing the wrench 2 within the barrel of the haft bf. The loop is first firmly attached t0 the snath and then the haft to the attaching-screw by the fixed nut ed, and by being thus separately and independently attached any derangeinentot' the one will not affect the other; lit'th, the thole maybe attached to the snath by a rightorleft handed screw, the haft being attached by a lett-handed screw in the fixed nutbd. The tirst, being screwed hard down, will not be affected by the slight force required to secure the latter; in all which particulars lbelieve said thole dilers from anytholethatisorhasbeen known or used, and may be made at a less expense than any approved thole in use.

The loop is made of wrought-iron, swaged into its proper shape, of about halt' an inch wide and an eighth of an inch in thickness, on the bend, and having the ends formed so as to receive the attaching-screw, as seen in 3, and which are nearly (or within the sixteenth of an. inch) brought together, so that by pressing them home the ring 3 can be passed over them, when the spring of the iron (being at the ends alittle larger than at the place of the ring) will keep the ring in place, and when in place the screw-thread is cut between the ends to receive the attaching-screw.

The cap or collar is made of cast-iron or other metal of about an inch in diameter, havinga groove or are across its center 5, on the outer side, conforming to thegeneral curve ot' scythe-snaths, and on each side ot' the groove is an aperture, through which the ends ot' the loop are passed. 0n the other side is a projecting rim of about an eighth ot' an inch to receive the end ot' the halt, and a socket in the center 'to receive the pivot of the attaching-screw, as seen in i.

The hatt is ofthe usual size. 0n one end a shoulderl is turned to enter and lill thel projecting rim of the cap. The halt is barreled out slightly bcveling about half its length, as seen b v the red lines in 8, so as to admit the ends of the loop and ring-'Wand the wrench 2 in its position at Sa.

The wrench is perforated, as seen at 2, so as to pass onto and over the attened part ot'tho attaching-screw, as seen in 7b. It is made eight-square, and forced into the barrel of the shat't and trmly fixed in its position at Se.

The attaching-screw G is made ot the length ot' the hatt. One end is a rounded socket-pivot, 6d, to tit the socketin the cap z, and from that pivot a right or let't handed screw is cut ot' about two inches long. At the other end is a left-handed screw, 6b, ot' about a t'ourth of an inch long, to enter the fixed nut in the end of the hatt 8d, and next thereto the rod ot' the attaching-screw is flattened for about threefourths otr an inch/lb, so as to enter the wrench 2 when in position at Se. passed over the ends ofthe loop and the loop passed over the snath to its proper position, the iron part of the thole is attached t0 the snath by inserting the pivot-end ofthe attaching-screw into the female screw between the ends ot' the loop, and with the wrench on the attened part ol said rod, turning said screw, (with its pivot end in said socket) down hard. The hatt is then passed toward the cap, the ilattened part of said rod clearing the wrench until the screw at the other end of said rod enters the iixed nut in the haft, which being screwed home, the thole is firmly attached to the snath.

VVhatI claim as myinvention, and desire t0 secure by Letters Patent, is

The wrench part 6 ot' the screw-rod, as seen in Fig. 7, combined with the rings c and d for fastening the nib upon the snath, as described and represented. p

Witnesses: DAVID SAWYER.

EDWARD EVERETT, HORACE EvnnE'r'r.

The ring beingA 

